But eating disorder charity Beat has branded it 'damaging' and Kidscape say it sends out 'worrying messages.

Makers of the app market it an an alternative to plastic surgery, with the description on the App store saying: “Are you curious as to why some celebrities have slimmer V-shaped faces, chins and bigger eyes than before?

“Do you wonder if you’d also look prettier or more handsome with a slimmer face and bigger eyes? What about your school mates?”

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Urging children to download the app, they add: “No need to go for any plastic surgery and it saves money and time!”

Claude Knights, chief executive for children’s charity Kidscape, said: “The manner in which this app is marketed is very disturbing.

“Using a child in before and after pictures and implying that a slimmed down version of their face would make them look more attractive sends out very worrying messages.”

Dim Dim Sum

Charities have slammed the app, which they say could encourage eating disorders

She added: “We know that children as young as seven worry about their body image and physical appearance, and that in this very visual age they are bombarded with so called 'ideal' and unrealistic images.

“An app of this nature contributes to the anxieties of young people and to the erosion of their self-esteem as well as to a variety of mental health issues and eating disorders.”

“Children should be encouraged to develop self-acceptance and to celebrate skills and talents that lead them to fulfil their potential.”

Dim Dim Sum

The app alters images to make ears appear smaller

SlimBooth

It can also make eyes appear bigger

A spokesperson for eating disorder charity Beat said: “An app such as this, creating a world in which young people can manipulate images of themselves, could be damaging to young people who are particularly vulnerable to these influences.

“Those responsible for these apps should think very carefully about the consequence of their actions. Young people should be left to celebrate who they are and not continually encouraged to strive for what is often the unattainable.”

Slim Booth is free to download and it gives options to manipulate facial features including eyes, ears and chin.

It is made by Dim Dim Sum, which is based in Hong Kong and creates smartphone apps.

They have been contacted for comment.

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